I'm on my phone so it's hard to look but baseball reference probably has something on the positions Hall played. As far as Koskie, I was at that game and he overran a pop up and fell down while reaching backwards, so you're right fairly innocuous. Your friend is also right though because when the ball bounced back up in the air after hitting Koskie's glove, Hall came in and caught it, which I'm guessing is where your friend sees it as a dramatic play.